manager.py 文件源码

def start(self, domain_name):
        domain_path = os.path.join(utils.CONFIG_PATH, domain_name)
        if not os.path.exists(domain_path):
            raise exception.DomainNotFound(domain=domain_name)

        bmc_config = self._parse_config(domain_name)

        # check libvirt's connection and domain prior to starting the BMC
        utils.check_libvirt_connection_and_domain(
            bmc_config['libvirt_uri'], domain_name,
            sasl_username=bmc_config['libvirt_sasl_username'],
            sasl_password=bmc_config['libvirt_sasl_password'])

        # mask the passwords if requested
        log_config = bmc_config.copy()
        if not CONF['default']['show_passwords']:
            log_config = utils.mask_dict_password(bmc_config)

        LOG.debug('Starting a Virtual BMC for domain %(domain)s with the '
                  'following configuration options: %(config)s',
                  {'domain': domain_name,
                   'config': ' '.join(['%s="%s"' % (k, log_config[k])
                                       for k in log_config])})

        with daemon.DaemonContext(stderr=sys.stderr,
                                  files_preserve=[LOG.handler.stream, ]):
            # FIXME(lucasagomes): pyghmi start the sockets when the
            # class is instantiated, therefore we need to create the object
            # within the daemon context

            try:
                vbmc = VirtualBMC(**bmc_config)
            except Exception as e:
                msg = ('Error starting a Virtual BMC for domain %(domain)s. '
                       'Error: %(error)s' % {'domain': domain_name,
                                             'error': e})
                LOG.error(msg)
                raise exception.VirtualBMCError(msg)

            # Save the PID number
            pidfile_path = os.path.join(domain_path, 'pid')
            with open(pidfile_path, 'w') as f:
                f.write(str(os.getpid()))

            LOG.info('Virtual BMC for domain %s started', domain_name)
            vbmc.listen()